Coil mounting



March 23 1926.

J. s. ELLIOTT COIL MOUNTING Filed May 15, 1922 [i nmoi'ji o for BOSTON,

o 1 fill'lfdlls ftll Impr ements in Coil Mountings; ofjivhich the irollowing' is 1a specification.=',. jThis inventio rj relates aftoi coil-mountings and consists in: improvements iii the means he:coilf againsty{lateral andlonigi j i ."An-other v y de amountmg'wh ch will serve as a conthe coil ith their terminals.

, provide amounting Which'isneat inappear- -ance,' simple andffeconomical' of m'anufac v cure, andproof'agalnst idamage or breakage .7 5 under hard usage;

f set torthin the 'folloiving spfioificatiohwhich describes preferred {enibo dimentfof the, 111'- vention-as illustrated h'ythe accon 'p'anying.

drawin'g sg f'In'the drawings F'g; his" 8,"p61"Sp6Ct1V8f Vl6W ot a cil-- mounting I embodying-the invention;

-- Fig. 2, a perspective view-"o f t-he "terminalblock which serves 'asasupportforthe coil;

1 damping-plates by means of which the'coil I connected 'jto" the terminal-block and Fig, 4', a[Vertical' sectional view of the 'coil-supportingbkck{takenthrough its ceniil ter to illustrate the terminal sockets and also themeans for securing tliefclamping-plates' t bl ck .o

Referring to Fig, '1 "of the "drawings my y "various"pu'rposesinjtheelectrical art,

he --c0r1ductor 0 l States ',residingat; axisioi the coil.,,-Each convolutioiior turn 7 111 theicount of Provrdence, State I f Rho eFI s1a-nd, hay' inyented certain new infveiitioii" "to proyide "rigidly and s'ecurely object of the iiiyention fis ito pro-' Venient means for connecting the leads from 'j, improyedfmounting Lis herein illustrated as 1 applied toa ring shape'd coil G of the SO-' v 1 hard material of a dielectric characterQ .-'-;C0il", 0f'"thepresent typeare usually-- Wound' on hollow coresfwhich'may consist 5 2 'oflai'fiher jor paper tube.

dassho'wn in Fig. 3' 1 e w is Wound onto a it i vsjmon, RHODFi isteirp, A same e-anima e COMPANYVLLI AssAcn-usnr r's, A corworu tflorr or MASSACHUSETTS."

piilicetion jleii may ;r1 1922'.= Serial No, 551,095.;

I I -this core in helical convolutions Which are' Be it; kno' n2; that-j 11,-; JOHN; S. ELLIOTTf' disposedat relativel'y sharp -angles :to the f of Wire: crosses from one side of the coil ltopo-sitedirect-ion,"is reversed again, and soon theyv ire-is spaced at a, slight distancefrom y the} previously laid turn v and consequently the turi 's'olf overlying layers'cross' each other? in an open network- 011 with a j'lattice effect which provides airtspaces-bet'ween the Wire convolutions.-, In the true honeycomb coil these aircells are of substantially diamond 7 shape and extend" from] the center for [core 0fthe coil clear to its outersurface, Wlllld in othersimilar types, such as the so-called duo-lateral coil,j the turnsof Wire in each la'yerare chsposed inlslightly ofiset relation to those of the next layer'so that a some what"ditterent appearance is.,giyen to the.

coil. "In either case,; hoWever, the purpose" H v V hot theope'nfllaying of the wireturns is the "Further objects'of the"improvement are i ,t'o huild u'pf the overlying" layersa In the 'honeycol'rihtype otwinding each turn 0t 16 1' substantially: f *oil 1 as employed in radio theani'ount off distributed capacity in the coil to renderi 1t IHOIGj'GifiCIBIIt for radio use.

The; abort-described method f of cross-winch 'i'ng-ithewlrezi-nthe 001i produces itself-sup}:

- porting structure which holds its, form without :end flanges or other; supports-midithe use of thistype of; coil-{has become quite 3, a perspect ve View of one ot the general in the electrical arts. *lVhile, the

' commonest form of thistype of coil is cylindrical 0r ring-shaped as showninFig; 1,

ly hollow confoi'iiiation in various polygonal shapes, and inyjprese'nt improved mounting is adaptedfor use with any cit-these, It is to be understood, therefore,. that the term ring-shaped as.herein' employe-d 'is used'in 'ageneralsenseas clesigna'ting alltypes of coils othollow-form H .c -Fig. 2 illustrates a preferred forin-of-the l terminal-block or mainsupport for the coil, which'niayi be constructed of rubber, I

fiber vulcanite, bakelite' or any other similar The block 2 is preferably of a generalsvedge shape,(having its sidestapered from-front to rear, Inits forward i'aceis aovertical islet 3 which forms, twoopposite outstanding The 14 are hollowed- Out or concaved te fb applied to use 'i ciiztnietef, t insure-1a;- I

{the surfacexof the -:i'coi1' even when the letter F i. is i-ri egulariin contour; Exteniing' flengitud bck2jfrom: from to rear are two heriz'qir' tel: bores fi-injtyhiehhrta hel d the tubular i,

1 V V 'i fsdeketsi i0r1the plug am1jack terminals .by

, Whichthe bloel'z isreonneeted to' the. apparatus en whichthefcoil isfused. "As shownrin ,r-Fig. 4,:thezf0rwerd. 'endshf thesleelves 7 are "internally threeded te adapt them, to receive 7 suitable binding-screws a1 l block; The but 7 ition of theribsis 7 j so 5 that V When the bifoek flis' set aggei meter sleeves er] bushings L7 7 forming; the

of'n'relzitively; shg r t eur Jugs 51;;Wi11 previde 1e plurality. pf

, points L -e11 3 its: :lsurfacez. Ehr fugh rangeirient nth block 2' is 1;- ade ted i w ith mils-0f difi'e.rentj siderable in Outside firm bearing against i "nally' 'gthe not 1 herein illusi trated) by whiclrthe Wire leads-16m the coil may be connected to the sockets; The- "s10t3 on thefacebf theblotkfproizides'a s are used,'enc1-alsozfor'the' ends of the vlre leads Vhibh iri some instavnce'sg iinay spuce forthe headset the serew s, when such v, Ibe s ,"de'red to the: terminzil-seckets:17.-

' aces of the bloekfiere two clamp-members idi'l' plates 10; preferably" Constructed. from suitable -sheet-metalfstoekJTheemam per-f,

'conform "to the; Outline of; the face of the bleek 2 Whi'ehit ove'rliesendxis provided with a hole erlperferation 11 adapted flto Ire- 7 eeive' a fastening-screw 12;: The screw 12"is l lendj.engaging W1'th' a threaded hole. '15 {in the .i'sicie'dfthe socket-sleeve]? The twoelamp ,fbo'ttonief the'bl0'ck2 byineans of the screws ho' le 14m the block 2 with, its

plates 10 may thus be seeuredYtO the top and e '12 {which are inserted injtheblock with their *ends 'screwed into thewailsofthe'sleeves 7 I Projecting forwardly from the main per-r tion of each Clamp-plate lQf'ere" two] opposite;,-spaced-2 part 'arnis' 16 termed by cutting exteriervo'f thece'il G; The outer "extremities" jjofthe "arms 1 are; slightly" curled upwardly 00 hdldiiig the (10rd QI j'tbaIIC i 2O Whieh binds the 1 51ai1 1'p 'lO'a'ga'inst'ithe 'ceil. Forthis purpose tofpr'm it sortpft-rougli across the arms for preferab1y 'I make :useof av'strbng, cord "or twine for. lashing theclan ps to the" pe-;

118.61 fi ibs "-ripiieiyone ca its in F g. 1, the cerd. 20 is passed through the central open-'- 7 p eerossjthje t'xjwfe ermsbf tIie eliin p lO-ziwith'l m ve'tu fe' of-theaeonc ed per-j number Qfiturns'tis usually-employedjfor jleshing two per-ts together; This lashing; or

Binding serves zto draw the armsfltiiof-jthe" "P ph y lot the c il; si'fshoumiin F gi, the f efth'e coil to render the block self-"Adjusting of the" windings; in -the tjrpelof eress-fwbund;

i111 'cietail the "wirewindingsgarelgid iiijdifi? tio'ns crossing the ,fate of'the' (Si tien. "This results in" hiQrIoTf16w? pla'e' fuse the ether details of the drawing.- Suf the block 2. with its enci suitably "joined to? other terminalrsocket 7,, with the join ler of" both leads made in any preferred manner? for the lead 'wires. 7

port er ineunting'l fefthefeil"G ll My irn ing the coihthen around its sides and clamps 107 tightly against :the periphery] of the coil C where'by the block. 2 has its four L lugs or abutmentsj 5 snugly-seated. against-- the surf 360f the cqil; to' serye'zis a fifin end seeuresuppert therefor. Thefprovisien of. the four protruding abutmentsjfi oni th'e'fo Ward-face lOjf thefbl'eelg 21i esu1ts 'inga feu m point contajct jOf theblock with,the :suitiee' as regerdsj r-any irregularities pr unevenness ilyjhereinjillustrated ffand gehev'e described;

ent "planes with one set of thi s f 01 den zibs series of turns 'cressingf in the reverse dire en the peripheral face off the e ilI-"drid the spacecLap-artebutmentsc Qn'the ibleck 2110+ ceminodate"themselves to thedifierent levels. Likewise, the four projecting arms 16 en the two clamps. 10 are se1f cenfer1ning to the surface of the vC011, for being slightly resilientthey; 'fie x required" to effect fa ffirm bearing at thQiIf separate points of contact withlthe wirelwinqiingsl In "coinecases the outer surfiefe of the coil C maybe enclosed byit thin, protection strip v. of vtape 01 other insulating material, but this isnOt essential The wire leads from the interibrand e'xte rior l Qia the windings are net herein illus trated as their .showing niight tend to when fice it tQfstate'thet thefle'ad from the 'ente otthe coil is drawn across its side tin through the eeneaved recess on the frdnt 'Off one jo'f thesocketsf; Theother lead "from the periphery of the coilvvis joined toth ithin "the slot 3 which provides a, Clearance .In operation the block 2 is supp rted; on? the ep-paretuswith 'Which the coil is used by-i meansef suitable tennina'l' plugs pr pins; which engaige the 'jeeks pr so'ckets; 7.; 'fIn some cases an alterniite arre'ngement tH vplugs and. jacks is provided "With OneJ-iphig; and one jack on 't-henbloc-k2gand e siniilerj arrangement. on the" supporting 'appaifatu In either case'the blo c'k2 is cen'ne'cted to th apparatus or" instrument tbfserjfe iis igt-f sup proved. -;1ne eins].for, effecting 'a "firm beixringg between the coiIC and ifS supp rter block 2, and fer securely fastening the tw'qfl e1e'-- ments togetherl ehminate's fell tor s 

